(Anatomy & Zoology)the jaw or a jawbone, especially the lower jawbone in mammals and fishes (剖,动)颌,颚;颚骨(尤指哺乳动物和鱼的下颌骨) ■either of the upper and lower parts of a bird's beak (鸟)上喙;下喙 ■either half of the crushing organ in an arthropod's mouthparts (节肢动物的)口器上部(或下部)
派生 mandibular adjective mandibulate adjective 语源
late Middle English: from Old French, or from late Latin mandibula, from mandere 'to chew'